restful
The presence of chronic stress causes the body to feel on-edge in an unrestful state.
Unrestful sleep could be result of untreated breathing difficulties.
Increasingly, research is pointing to the negative impact of an unrestful environment on a worker's sense of well-being.

SMART Vocabulary: related words and phrases

Tired and making tired
all in
anti-fatigue
at your worstidiom
be dead on your feetidiom
be fit/ready to dropidiom
finish something off
fit to dropidiom
fragile
frazzled
gassed
haggard
knackered
shell-shocked
sleep deprivation
sleep-deprived
sleepily
sleepiness
sleepy
strung out
zonked

You can also find related words, phrases, and synonyms in the topics:

Becoming too excited and easily upset